Improvement in the manufacture of metal rings



WW1. MERSEREAU. Manufacture of Metal Rings.

' NoL 218,128. Patented Aug. 5, 1879.

F/GZ F705 WMM- JETERS, PHOTO-LITHDGRAPHER, WASHINGTON. n c

UNITED STATEs PATENT OFFICE.

WILLIAM T. MERSEREAU, OF ORANGE, NEW JERSEY.

IMPROVEMENT IN THE MANUFACTURE OF METAL RINGS.

Specification forming part of Letters Patent No. 218,128, dated August5, 1879; application filed May 15, 1879.

To all whom it may concern:

Be it known that 1, WILLIAM T. MERSE- BEAU, of Orange, Essex county, NewJersey, have invented, made, and applied to use Improvementsin theManufacture of Metal Rings for Curtains and other Purposes 5 and thatthe following is a full, clear, and correct description of my invention,reference being had to the accompanying drawings, making part of thisspecification, and to the letters of reference marked thereon, in whichFigure 1 is a view of the metal drawn into the oval tubular form. Fig. 2is a view of the same rolled in the spiral form. Fig. 3 is a view of oneof the rings cut from the spiral form. Fig. 4 is a view of the ring withthe tongue inserted. Fig. 5 is a view of the ring completed, the endsbeing closed.

In the drawings like parts of the invention are pointed out by the sameletters of referonce.

The nature of the present invention consists in improvements, as morefully hereinafter set forth, in the manufacture of metal rings forcurtains and other purposes the object of the invention being theproduction of metal rings expeditiously, and at a low cost to theconsumer.

Heretofore metal rings have been formed by using a solid or brazed tube,which has been filled with sand, or somelike material, so that when therings are formed upon a mandrel of the proper size the tube will notbuckle or lose its form during this process, after which the ringsformed are sawed apart, the sand or other filling material is emptiedout, and the joint is brazed or hand-soldered 5 or they have been madeby sinking the two parts in a die, and then soldering or spinning thetwo parts together; or a single shell is made of depth equal to half thediameter of the ring, and is then closed over with a die.

To enable those skilled in the arts to make and use my invention, I willdescribe the same.

I first form from sheet metal, by drawing the same, the oval tubularstrip designated as A and shown in Fig. 1 of the drawings. This ovaltubular strip is then run through grooved shaping-rollers, and by thisoperation is bent into the spiral form B. (Shown in Fig.2 of thedrawings.) From this spiral form B sufficient of the same to form a ringis sawed off or separated, as shown at 0, Fig. 3. Into one of the openends of this sawed-off or separated portion, as at D,Fig. 4,0t' thedrawings, I then insert the tongue-piece d and a small piece of softsolder, and spring the opposite portion of the ring into position, sothat the tongue enters into it.

In this position the ringis inserted in a fire, (or subjected to theaction of heat sufficient for the purpose,) the solder is melted, andthe ends of the rings are closed, and a ring, as shown at E, Fig. 5, isformed.

It will be observed that by following the process described the manufacture of metal rings is expedited and the cost is greatly reduced.

Having now set forth my invention, what I claim as new is 1. The withindescribed process for the manufacture of metal rings, which consists infirst drawing the metal into the oval tubular form, then bending thesame into a spiral form, separating from the same the metal to form thering, inserting the tongue-piece and soft solder within the ends of thesame, and finally uniting the ends by subjecting the ring to heat,substantially as and for the purpose set forth.

2. As a new and improved article of manufacture, a metal ring the endsof which are closed by a tongue-piece and soft solder, substantially asand for the purposes set forth.

WILLIAM T. MERSEREAU.

In presence of- GEORGE W. HOLT, WILLIAM V. H. HIoKs.

